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Installer's Guide
Upflow/Downflow/Horizontal
Gas-Fired, 1–Stage and 2–Stage Induced Draft
Furnaces with High Efficiency Motor
U U p p f f l l o o w w , , D D o o w w n n f f l l o o w w , , H H o o r r i i z z o o n n t t a a l l R R i i g g h h t t / / L L e e f f t t
Single Stage
S8X1A026M2PSAA
S8X1A040M3PSAA
S8X1B040M2PSAA
S8X1B060M3PSAA
S8X1B060M4PSAA
S8X1B080M4PSAA
S8X1C080M5PSAA
S8X1C100M5PSAA
S8X1D120M5PSAA
N N o o t t e e : : This installer's Guide is used for multiple furnace families. Models
may have a "T" in the 12th digit designating they meet California less
than 40 ng/J (NOx) emissions requirements.
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and
air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered
equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the
literature and on the tags, stickers, and labels that are attached to the equipment.
January 2019
Two Stage
S8X2A040M3PSAA
S8X2B060M3PSAA
S8X2B060M4PSAA
S8X2B080M4PSAA
S8X2C080M5PSAA
S8X2C100M5PSAA
S8X2D120M5PSAA
18-CE04D1-1A-EN
S S A A F F E E T T Y Y W W A A R R N N I I N N G G
1 1 8 8 - - C C E E 0 0 4 4 D D 1 1 - - 1 1 B B - - E E N N
S8X1
N N o o t t e e : : Graphics in this document are for
representation only. Actual model may
differ in appearance.
S8X2
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Table of Contents
Related Manuals for Trane S8X1 Series
Summary of Contents for Trane S8X1 Series
- Page 1 Installer’s Guide Upflow/Downflow/Horizontal Gas-Fired, 1–Stage and 2–Stage Induced Draft Furnaces with High Efficiency Motor U U p p f f l l o o w w , , D D o o w w n n f f l l o o w w , , H H o o r r i i z z o o n n t t a a l l R R i i g g h h t t / / L L e e f f t t Single Stage Two Stage S8X1A026M2PSAA...
- Page 2 SAFETY SECTION NON-CONDENSING FURNACES I I n n g g e e r r s s o o l l l l R R a a n n d d h h a a s s a a p p o o l l i i c c y y o o f f c c o o n n t t i i n n u u o o u u s s p p r r o o d d u u c c t t W W A A R R N N I I N N G G a a n n d d p p r r o o d d u u c c t t d d a a t t a a i i m m p p r r o o v v e e m m e e n n t t a a n n d d i i t t r r e e s s e e r r v v e e s s t t h h e e F F I I R R E E O O R R E E X X P P L L O O S S I I O O N N H H A A Z Z A A R R D D ! !
- Page 3 S S A A F F E E T T Y Y S S E E C C T T I I O O N N N N O O N N - - C C O O N N D D E E N N S S I I N N G G F F U U R R N N A A C C E E S S W W A A R R N N I I N N G G W W A A R R N N I I N N G G F F I I R R E E H H A A Z Z A A R R D D ! !
- Page 4 S S A A F F E E T T Y Y S S E E C C T T I I O O N N N N O O N N - - C C O O N N D D E E N N S S I I N N G G F F U U R R N N A A C C E E S S W W A A R R N N I I N N G G W W A A R R N N I I N N G G E E X X P P L L O O S S I I O O N N H H A A Z Z A A R R D D ! !
- Page 5 S S A A F F E E T T Y Y S S E E C C T T I I O O N N N N O O N N - - C C O O N N D D E E N N S S I I N N G G F F U U R R N N A A C C E E S S C C A A U U T T I I O O N N C C A A U U T T I I O O N N C C O O R R R R O O S S I I O O N N W W A A R R N N I I N N G G ! !
- Page 6 S S A A F F E E T T Y Y S S E E C C T T I I O O N N N N O O N N - - C C O O N N D D E E N N S S I I N N G G F F U U R R N N A A C C E E S S C C A A U U T T I I O O N N W W A A R R N N I I N N G G E E Q Q U U I I P P M M E E N N T T D D A A M M A A G G E E ! !
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Page 7: Table Of Contents
Table of Contents Accessories....... . . 8 Field Wiring ......40 Document Pack Contents . -
Page 8: Accessories
Accessories Table 1. Accessories Model Number Description Use with BAYHANG Horizontal Hanging Kit All Furnaces BAYLIFTB Dual Return Kit (B size extension) B Cabinet Furnaces BAYLIFTC Dual Return Kit (C size extension) C Cabinet Furnaces BAYLIFTD Dual Return Kit (D size extension) D Cabinet Furnaces BAYBASE205 Downflow Subbase... -
Page 9: Furnace Installation Guidelines
Furnace Installation Guidelines The following sections give general guidelines for the e. A minimum 4” MERV 11 air filter must be in installation of the gas furnaces. place. 100% of the Furnace combustion air Safety Practices and Precautions requirement must come from outside the structure. -
Page 10: Locations And Clearances
F F u u r r n n a a c c e e I I n n s s t t a a l l l l a a t t i i o o n n G G u u i i d d e e l l i i n n e e s s W W a a r r n n i i n n g g : : T T h h e e s s e e f f u u r r n n a a c c e e s s a a r r e e n n o o t t a a p p p p r r o o v v e e d d o o r r the Furnace is moved into place, be sure to consider i i n n t t e e n n d d e e d d f f o o r r i i n n s s t t a a l l l l a a t t i i o o n n i i n n m m a a n n u u f f a a c c t t u u r r e e d d ( ( m m o o b b i i l l e e ) ) - Page 11 F F u u r r n n a a c c e e I I n n s s t t a a l l l l a a t t i i o o n n G G u u i i d d e e l l i i n n e e s s g.
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Page 12: Outline Drawings
Outline Drawings S8X2 shown Table 2. 14.5” Width Cabinet 18-CE04D1-1B-EN... - Page 13 O O u u t t l l i i n n e e D D r r a a w w i i n n g g s s Table 3. 17.5” Width Cabinet 18-CE04D1-1B-EN...
- Page 14 O O u u t t l l i i n n e e D D r r a a w w i i n n g g s s Table 4. 21.0” Width Cabinet 18-CE04D1-1B-EN...
- Page 15 O O u u t t l l i i n n e e D D r r a a w w i i n n g g s s Table 5. 24.5” Width Cabinet 18-CE04D1-1B-EN...
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Page 16: Furnace General Installation
Furnace General Installation S-Series Furnace Panel Removal The following sections give general instructions for the installation of the gas furnaces. Note: For the S8X2 furnace, a 5/16” Allen wrench is required to Note: For the S8X1 furnace, a 1/4" nut driver is required to remove remove the four latches on the front panel. -
Page 17: Gas Piping
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Gas Piping Important: The furnace default is left side gas piping. - Page 18 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Note: For ease of installation, optional accessory part PIP02095 is recommended for gas piping entering the right side of the furnace.
- Page 19 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n The furnace is shipped standard for left side installation of gas piping.
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Page 20: Combustion And Input Check
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Combustion and Input Check Make sure all gas appliances are off except the furnace. -
Page 21: Gas Valve Adjustment
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Gas Valve Adjustment Changes can be made by adjusting the manifold pressure, or changing White-Rodgers 36J... -
Page 22: High Altitude Derate
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n High Altitude Derate Input ratings (BTUH) of these Furnaces are based on sea level operation and should not be changed at elevations up to 2,000 ft. -
Page 23: General Venting
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n General Venting with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, local codes, and this installation manual. - Page 24 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n EXTERNAL MASONRY CHIMNEY Venting of fan assisted appliances into external chimneys (one or more walls Gas Vent Termination...
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Page 25: Air For Combustion And Ventilation
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Air for Combustion and Ventilation Adequate flow of combustion and ventilating air must not be obstructed from reaching the Furnace. - Page 26 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Confined spaces are installations with less than 50 cu.
- Page 27 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n All air from outdoors The confined space shall be provided with two permanent openings, one commencing within 12 inches of the top and CONFINED SPACE...
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Page 28: Duct Connections
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Duct Connections Air duct systems should be installed in accordance with standards for When the furnace is located in a utility room adjacent to the living... - Page 29 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Table 6.
- Page 30 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Furnace in Horizontal Right with “A”...
- Page 31 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Horizontal Right and Downflow Furnace —...
- Page 32 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Table 7.
- Page 33 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Table 7.
- Page 34 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Table 7.
- Page 35 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Table 7.
- Page 36 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Table 7.
- Page 37 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Table 7.
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Page 38: Return Air Filters
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Return Air Filters TYPICAL AIR FILTER INSTALLATIONS Filters are not factory supplied for furnaces. - Page 39 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n When the furnace is installed in the horizontal right or left Figure 1.
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Page 40: Electrical Connections
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Electrical Connections Make wiring connections to the unit as indicated on enclosed wiring diagram. -
Page 41: Twinning
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Twinning NOTES: TWINNING CONNECTION DIAGRAM... - Page 42 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n NOTES: TWINNING CONNECTION DIAGRAM 1.
- Page 43 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n NOTES: 1.
- Page 44 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n NOTES: 1.
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Page 45: General Start-Up And Adjustment
General Start-up and Adjustment Preliminary Inspections The following sections give instructions for the general start-up and adjustment of the gas furnaces. With gas and electrical power "OFF", ensure: Turn knob on main gas valve within the unit to the "OFF" position. Turn the external gas valve to "ON". -
Page 46: Options
Furnace Combustion Air Exhaust Options Note: Default is left side for electric and gas connections. The following sections give instructions for the I I m m p p o o r r t t a a n n t t : : When looking at the different orientations, different furnace orientations and the options for the direction of the combustion air exhaust venting the exhaust combustion air. - Page 47 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Table 9.
- Page 48 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Table 11.
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Page 49: Combustion Air Conversions
F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Combustion Air Conversions Pressure Switch locations Important: After deciding the orientation of the flue outlet, cut the... - Page 50 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Horizontal left orientation with left side venting No changes need to be made to the inducer when installing the furnace in upflow position with the combustion air vented through the...
- Page 51 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Horizontal right orientation with top venting Before proceeding, lay unit on its back to make the conversion easier.
- Page 52 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Downflow orientation with right side venting Before proceeding, lay unit on its back to make the conversion easier.
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Page 53: Integrated Furnace Control Menu
Integrated Furnace Control Menu 18-CE04D1-1B-EN... - Page 54 I I n n t t e e g g r r a a t t e e d d F F u u r r n n a a c c e e C C o o n n t t r r o o l l M M e e n n u u 18-CE04D1-1B-EN...
- Page 55 I I n n t t e e g g r r a a t t e e d d F F u u r r n n a a c c e e C C o o n n t t r r o o l l M M e e n n u u 18-CE04D1-1B-EN...
- Page 56 I I n n t t e e g g r r a a t t e e d d F F u u r r n n a a c c e e C C o o n n t t r r o o l l M M e e n n u u 18-CE04D1-1B-EN...
- Page 57 I I n n t t e e g g r r a a t t e e d d F F u u r r n n a a c c e e C C o o n n t t r r o o l l M M e e n n u u S8X1 - S8X2 System Status Menu Example...
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Page 58: Setting Airflow
Setting Airflow With all ductwork connected and a clean filter in place, measure the External Static Pressure (ESP) of the unit in locations below. Use the appropriate airflow table for the furnace and outdoor unit installed. Measurements must be made prior to the evaporator coil, if equipped, Evaporator and after the filter. -
Page 59: Codes
Integrated Furnace Control Display Codes Menu Options Idle Active Alarm Menu Last 6 Faults (To clear — Hold Option button down for 5 seconds after entering the L6F menu) Code Release Number Cooling Off Delay (Seconds) Outdoor Unit Type (Single / Two Stage) Blower Constant Fan Airflow Heat Off Delay (Seconds) Inter-Stage Delay (Seconds) -
Page 60: Fault Code Recovery
I I n n t t e e g g r r a a t t e e d d F F u u r r n n a a c c e e C C o o n n t t r r o o l l D D i i s s p p l l a a y y C C o o d d e e s s Fault Code Recovery Fault Code Recovery To view the last 6 faults, press the “Menu”... -
Page 61: Sequence Of Operation S8X1/S8X2
Sequence of Operation S8X1/S8X2 N N o o t t e e : : The seven-segment LED readout is based on 7. The first burner will ignite, and flame will crossover thermostat input. For the S8X2, during to the remaining burners establishing current to the simultaneous call for W1 and W2, the seven- flame sensor. - Page 62 S S e e q q u u e e n n c c e e o o f f O O p p e e r r a a t t i i o o n n S S 8 8 X X 1 1 / / S S 8 8 X X 2 2 N N o o t t e e : : If PS2 does not close within the 45 seconds, the •...
- Page 63 N N o o t t e e s s 18-CE04D1-1B-EN...
- Page 64 , Thermo King ® ® Trane — work together to enhance the quality and comfort of air in homes and buildings; transport and protect food and perishables; and increase industrial productivity and efficiency. We are a global business committed to a world of sustainable progress and enduring results.
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